Improvement in window-screens



W. FLOOD.

N4 PETERS, PHOTO-LITHOGRAPHEH. WASHKNGTON. D Cv UNITED STATES PATENTOFFICE.

WILLIAM FLOOD, OF NEW YORK, N. Y., ASSIGNOR TO SAMUEL ROEBUCK,

OF SAME PLACE.

IMPROVEMENT IN WINDOW-SCREENS.

Specification forming part of Letters Patent No. {89,720, dated April17, 1877; application tiled March 24, 1877.

screen, and Fig. 2 is'a cntral vertical sec-- tional view of my screenextended.

This invention relates to window-screens; and consists in theconstruction and combination of parts, hereinafter described andclaimed.

In the accompanying drawings, A designates one section of the frame of awindow-screen, and B the othery section thereof, each framesection beingrectangular, and covered with a wire-screen, O, for excluding insects.Section A is provided at the top and bottom with vertical beads ortongues a, vertical grooves al, horizontal grooves a?, and corner ridgesa3 between said grooves. Section B isgcorrespondvingly provided at topand bottom with vertical grooves b, which receive tongues a, verticaltongues b1, which set into grooves al, horizontal tongues b2, which setinto grooves a, and corner recesses b3, which receive corner ridges a3.The two sections A and B thus connected may be readily slid together orapart, so as to open or close the window. Section B is provided With avertical bar, D, which .presses against the screen O of the othersection, and is stopped by one of the uprights thereof when the saidsections are slid apart. Its oftice is to exclude insects, and toprevent sections A and B from separating.

What I claim as new, and desire to secure by Letters Patent, is-

The combination of screen-section A, having vertical tongues a, verticalgrooves al, horizontal grooves a2, and corner ridges a3, with section B,having grooves b, tongues b1 and b2, and corner recesses b3,substantially as and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

WILLIAM FLOOD.

- Witnesses:

JAMES H. HUNTER, JOHN S. GAGE.

